Сделать диалог present perfect continious

Dave: Hi Tim. What's up?

Tim: Oh, hi Dave! What are you doing here?

Dave: Oh, I've joined the Eco-helpers club.

Tim: Oh yeah, I've heard about that. Sally collects rubbish for recycling in the park every Saturday morning, doesn't she?

Dave: That's right. She's been doing that for a month. I've been building nesting boxes.

Tim: Nesting boxes?

Dave: Well, there aren't many trees left in the city for birds to build their nests. If we don't help them, they will have to leave the city.

Tim: That's interesting. What else have you been doing?

Dave: We've been planting trees and cleaning out ponds for a week now that the weather's good.

Tim: Your club sounds wonderful. I could join as well, couldn't I?

Dave: Of course you could. We really need volunteers, but you have to see Miss Jackson first. She'll tell you what to do.

Tim: Sounds great! I'll join first thing Monday morning

She's been doing.

I've been building.

have you been doing?

We've been planting trees and cleaning out.

Объяснение:

1) Чтобы было легче общаться во время путешествий

2) можно устроиться на международную работу

3) для общего развития памяти

4) проще завести друзей по переписке из других стран

5) можно читать Книги, смотреть фильмы и слушать музыку без перевода, в оригинале